Re Warburtons - The owner was Harold if I remember right - he was bald and wore a beret. Apparently he went bald after suffering shellshock.
We used to love when he had a shark in we would all go after school to look. The head used to sell for about 50p I think he told me when I asked!

My Mum corrected me and said that he actually just suffered alopaecia from an early age. She says he had no eyelashes or eyebows too. She too remembers the tuna event!